Pivoting device for ventilating-sashes.



No. 784,574. PATENTED MAR. 14, 1905. G. N. LANGDON & O. E. GARLSON.

PIVOTING DEVICE FOR VENTILATING SASHBS.

' APPLICATION FILED JUNE 7. 1904.

NITED STATES Patented March 14, 1905.

PATENT OFFICE.

CHARLES N. LANGDON AND OSCAR E. CARLSON, OF NEWCASTLE, PENNSYLVANIA.

PIVOTING DEVICE FOR VENTILATING-SASHES.

SPECIFICATION forming part of Letters Patent No. 784,574, dated March 14, 1905.

Application filed June 7, 1904. Serial No. 211,571.

Be it known that we, CHARLES N. LANG- DON and OSCAR E. OARLsoN, citizens of the United States, residing at Newcastle, in the county of Lawrence and State of Pennsylvania, have invented certain new and useful Improvements in Pivoting Devices for Ventilating-Sashes, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to ventilating sashes or transoms, particularly of the type designed for use in railway-coaches for the purpose of ventilation through the upper windows, and which sashes or transoms are termed in the trade deck-sashes. In this connection the invention has specially in view an improved construction of pivoting device for ventilating-sashes of this character.

This invention contemplates a pivoting device which not only provides for the pivotal support of the sash or transom, but also comprises means for permittingthe sash or transom to be moved, under pressure, to variable positions and held firmly in any position to which it may be set, according to the requirements of the ventilation.

Heretofore in devices of this character which provide for the pivotal support of ventilating-sashes and also for the adjustment thereof to various positions difficulty has been experienced in maintaining the parts in firm operative relation and also in preventing the separation of the members constituting the pivotal support under some conditions, such as shrinkage or wearage of parts. The present invention obviates these difficulties by providing a construction which causes the parts to be held and, guided in such a way that the same are held in perfect operative relation at all times and are positively prevented from separation due to shrinkage, wear, breakage of the swinging elements, or violent manipulation of the sash or other causes which generally derange the piv ots of deck-sashes now in use.

With these and many other objects, which will more readily appear as the nature of the invention is better understood, the same consists in the novelconstruction, combination, and arrangement of parts, which will be hereinafter more fully described, illustrated, and claimed.

The essential features of the invention in volved in the construction which provides for carrying out the objects indicated are necessarily susceptible to some structural change Without departing from the scope of the invention; but a preferred embodiment thereof is shown in the accompanying drawings, in which Figure 1 is an elevation of a pivoting device for ventilating-sashes constructed in accordance with this invention and shown applied to the frame and sash of a carventi lator. Fig. 2 is a sectional view on the line 2 2 of Fig. 1. Fig. 3 is a detail in perspective of the sector-shaped pivot-bracket, which is usually fitted to the sash or transom. Fig. 4 is a detail sectional view showing a modification of the auxiliary guiding and retaining device associated with the guide-slot of the bracket.

Like reference-numerals designate corresponding parts throughout the several figures of the drawings.

In carrying out the present invention no change is required in the ordinary construction and arrangement of the sash or its frame, so for illustrative purposes there is shown in the drawings a car-ventilator of the ordinary type, which essentially consists of a swinging sash or transom 1, fitted to and working into and out of the window-frame 2.

As indicated, the present invention consists of a pivoting device which provides for the pivotal support of the sash or transom 1, while at the same time having means for se curely latching or holding the sash in any set position. This pivoting device includes in its general organization a pivot-bracket 3, usually of a sector shape and provided at one side with an oblong attaching-plate 4, de-

signed to receive the screws or equivalent fasteners for securing the same to the rail of the sash or transom 1, so that thepivotbracket will be rigid with the sash and move therewith.

The sector-shaped pivot-bracket 3 may consist of a solid or skeleton casting, but is preferably of a skeleton formation. In the carryingout of the present invention said bracket is provided at its radial center with the pivot-stud 5, projecting from one side thereof and adapted to engage and turn in an open bearing-seat 6, provided at one end of a bearing-plate 7, screwed or otherwise fastenedto the side of the frame 2 for the swinging sash or transom 1. The open bearingstud 6 at one end of the bearing-plate 7 is preferably in the form of an open hook, which permits of the ready engagement and disengagement of the pivot-stud 5 of the pivotbracket to facilitate the assembling and taking apart of the device. In addition to the said bearing-seat the plate 7 supports there-' on a spring-bolt case 8, accommodating therein a sildable bolt 9, and a pressure-spring 10, having suitable engagement with the bolt and serving to normally and yieldingly project one end thereof out of the case and into engagement with the notched latching-surface 11, formed on the periphery of the segment 12 of the pivot-bracket. The segment latching-surface 11 extends the full length of the arc of the bracket, and the notches are of a rounded form, so as to readily slide against and past the active end of the bolt 9 when the sash is moved toward or from the window-frame 2 for ventilating purposes. In this movement of the swinging sash it is obvious that the spring-projected bolt 9 will accommodate itself to the undulations of the notched surface 11 as the pivot-bracket is moved beneath the bolt, and when the sash comes to rest the bolt 9 is held by a springpressure firmly in engagement with one of the notches, thus acting in the capacity of a hold ing-catch for securing the sash or transom in its adjusted position.

The spring-projected holding-catch de scribed, including the bearing-platewith the open bearing-seat, represents a construction forming a part of a type of pivoting device in use upon ventilators for railway-coaches, and the improvements contemplated by the present invention are shown applied to that construction to illustrate the adaptability of the new form of bracket to coaches already equipped with the type of spring-holding catch and bearing referred to.

Referring more particularly to the special improvements constituting the present invention, a distinctive feature resides in providing the sector-shaped pivot-bracket 3 at one side of its notched peripheral edge with an offstanding guard or retaining-flange 13,

extending the full length of the segment 12 and projecting beyond the said notched surinterposed position between the catch and its base, positively prevents the notched latching surface or segment 11 slipping laterally off of the end of the holding catch or bolt. In this connection-the flange 13 therefore prevents the notched segment of the bracket from moving in a direction away from the base or plate 7 sufficiently to either become disengaged from the catch or bolt 9 or to per mit the pivot-stud 5 from falling out of its bearing.

A further improvement resides in formin the body of the bracket 3 with a segmenta guide-slot 14, coextensive with the notched segment 12 and working over an auxiliary bracket guiding and retaining device. This auxiliary bracket guiding and retaining device preferably consists of a bushing 15, having a flanged guard-head 16 overlapping the edges of the s 0t 14 and also provided at the end opposite the said head 16 with a tapered nose 17, fitting in the countersink 18 of a screw-hole provided in the bearing-plate 7, and which screw-hole is designed to receive a retaining-screw 19, passing through the bushing and into the frame 2. This device, consisting of the bushing 15 and the screw 19, acts as a steadying-guide for the pivotbracket and, furthermore, supplements the function of the flange 13 by preventing the pivot part 15 of the bracket working away from the bearing 6 sufliciently for a disengagement of the parts at this point by reason of undue looseness occasioned by shrinkage, breakage of the pivot 5 or bearing 6, or otherwise.

A modification of the guiding and retain- .ing device that may be resorted to is suggested in Fig. 4 of the drawings. In this modification said device is shown as consisting of a screw 20, having a flanged guard head 21-, overlapping the edges of the slot 14 and formed with a beveled shoulder 22 for engagement with the countersink 18 of the screw-hole in the plate 7.

From the foregoing it is thought that the construction, operation, and many advan ta es of the herein-described pivoting device wi be readily understood, and it will also be readily understood that various changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit of the invention or sacrificing any of the advantages thereof.

Having thus described the invention,what is claimed, and desired to be secured, is

1. In a pivoting device of the class described, the combination of a holding-catch, and a bracket having a pivotal support and provided with a latching-surface engaging with the catch, said bracket being further provided with a guard-flange extending behind the said catch.

2. In a pivoting device of the class described, the combination with a yielding catch-bolt, of a pivotal supporting-bracket having a segmental notched latching-surface engaged by said catch-bolt, and also provided at one side with an outwardly-projecting guard-flange extending beyond the edge of said latching-surface, and engaging behind the said catch-bolt.

3. In a pivoting device of the class described, the combination of a catch, a pivotally-mounted bracket having aguide-slot, and a guiding and retaining device extending through said slot.

4C. In a pivoting device of the class described, the combination of a catch, a pivotally-mounted bracket cooperating with said catch and provided with a guide-slot, and a guiding and retaining device consisting of a headed bushing extending through said slot, and a screw passing through the bushing and into a fixed support.

5. In a pivoting device of the class described, the combination of a bearing-plate having a bearing-seat and supporting a spring-projected catch-bolt, a sector-shaped pivot-bracket having a stud engaging said bearingseat and provided with a notched latching-segment slidably engaging the active end of the catch-bolt, said bracket being further provided with a segmental guide-slot and with a guard-flange disposed at one side of the notched surface and projecting beyond such surface for engagement behind the bolt, and an auxiliary bracket guiding and retaining device supported upon the bearing-plate and having a headed member disposed within the slot and overlapping the edges of the latter.

In testimony whereof we affix our signatures in presence of two witnesses.

CHARLES N. LANGDON. OSCAR E. CARLSON.

WVitnesses:

JOHN SOHLARB, J. G. WI-IITESIDE. 

